Add EffectiveConnectionType enum to the system profile proto

chrome/browser/metrics/chrome_metrics_service_client.h

Index: chrome/browser/metrics/chrome_metrics_service_client.h
diff --git a/chrome/browser/metrics/chrome_metrics_service_client.h b/chrome/browser/metrics/chrome_metrics_service_client.h
index 16f59c6e688d2d37b94733f85998a1af9377f82f..10b6dca0ecb578efa3a98bbd65be4088195cd406 100644
--- a/chrome/browser/metrics/chrome_metrics_service_client.h
+++ b/chrome/browser/metrics/chrome_metrics_service_client.h
@@ -40,9 +40,14 @@ namespace metrics {
 class DriveMetricsProvider;
 class MetricsService;
 class MetricsStateManager;
+class NetworkMetricsProvider;
 class ProfilerMetricsProvider;
 }  // namespace metrics
 
+namespace net {
+class NetworkQualityEstimator;
+}  // namespace net
+
 // ChromeMetricsServiceClient provides an implementation of MetricsServiceClient
 // that depends on chrome/.
 class ChromeMetricsServiceClient
@@ -136,6 +141,10 @@ class ChromeMetricsServiceClient
   // Called when a URL is opened from the Omnibox.
   void OnURLOpenedFromOmnibox(OmniboxLog* log);
 
+  // Provides the network quality estimator to |network_metrics_provider|.
+  void ProvideNetworkQualityEstimator(
+      net::NetworkQualityEstimator* network_quality_estimator) const;
+
 #if defined(OS_WIN)
   // Counts (and removes) the browser crash dump attempt signals left behind by
   // any previous browser processes which generated a crash dump.
@@ -219,6 +228,10 @@ class ChromeMetricsServiceClient
   // Profiler data is uploaded at most once per session.
   bool has_uploaded_profiler_data_;
 
+  // The NetworkMetricsProvider instance that was registered with
+  // MetricsService. Has the same lifetime as |metrics_service_|.
+  metrics::NetworkMetricsProvider* network_metrics_provider_;
+
   base::WeakPtrFactory<ChromeMetricsServiceClient> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeMetricsServiceClient);